Owl Shift, Tuesday, August 27, 2002

about 00:00 Called MCC to ask when they thought we might get beam. They
            just laughed.

00:50 There appears to be beam, but it is still not steered in.

01:10 We have 4nA beam with ok steering, starting harp scan
electron beammharp scan looks ok

01:40 Taking photon beam harp scans, we have a photon beam
    2mm on X and 6mm on Y

02:30 prudoction run #797(luminosity rate test), 
PSMT prescale 300, MOR prescale 3, 
5% carbon primex target, radiator B in, TAC in, no convertor 
the beam current 80pA
lost beam run was ended with 9473341 million events 

03:40 production run #799 (luminosity rate test), beam current 10 nA, TAC out.
PSMT prescale 15000, MOR prescale 150 run ended with
about 10 000 000 events

04:20 production run #800 (luminosity rate test), beam current 50 nA, TAC out
PSMT prescale 45000, MOR prescale 450, lost beam for few seconds
run was ended with 9865041 events

04:40 Bruno has pionted out that we are filling up our raid disks
still have half of raid0 and all raid5 to fill which is about 3.5-4 hours

04:55 production (luminosity rate test) run #801, beam current 100nA
PSMT prescale 90000, MOR prescale 900, lost beam for few seconds,
beam is back but the current is changing form 80-100 nA.

05:00 problem with disk space is solved for now

5:30 run #801 was ended with 6000000 events,
MCC needed to do some beam tuning, we have no beam

5:55 the beam is back, starting run #802 
conditions are the same as in run #801, lost the beam for few seconds,
the run was ended with about 4000000 events

06:25 starting run #803 (luminosity rate test),
beam current 75 nA, PSMT prescale 70000, MOR prescale 700
we have 1306357 events in this run(not enough statistics)

06:30 lost the beam, MCC says our beam is causing BLM alarms and
they need to figure out the reason, no idea how long it will take. 

07:20 run #803 is ended to change the PSMT prescale factor to 60000 and
MOR prescale factor to 600. when beam comes back a new run with 75nA
current needs to be started with this prescale factors. 
we need about 8.7 million more events at this current.